Bluetooth chip specialist CSR is leading the risers, closely following by property group Daejan Holdings and sports chain Sport Direct International.Weather disruptions are sending some stocks lower with retailers Dixons, Dunelm and SuperGroup among the worst performers, and public transport group Go-Ahead also heading lower.Underwriter Catlin saw shares fall after raising the amount it expects to lose due to the New Zealand earthquake in September by $10m to $45m.The company said it was making the announcement 'in view of the increased interest in this event by the investment community.' The estimate is based on total insured losses from the earthquake of between $5.5bn to $6bn. FTSE 250 - RisersCSR (CSR) 343.90p +7.60%Daejan Holdings (DJAN) 2,782.00p +4.19%Sports Direct International (SPD) 159.00p +3.52%Mcbride (MCB) 185.00p +3.12%Misys (MSY) 327.00p +2.99%Phoenix Group Holdings (DI) (PHNX) 628.00p +2.95%Premier Foods (PFD) 18.86p +2.61%Stagecoach Group (SGC) 215.20p +2.57%Bellway (BWY) 657.50p +2.57%Melrose (MRO) 315.20p +2.54%FTSE 250 - FallersMicro Focus International Plc (MCRO) 394.90p -2.76%Dixons Retail (DXNS) 22.71p -2.49%Atkins (WS) (ATK) 711.00p -2.27%Helical Bar (HLCL) 283.50p -2.24%Gartmore Group Ltd. (GRT) 93.50p -2.20%Dunelm Group (DNLM) 526.00p -2.14%Victrex (VCT) 1,464.00p -1.74%Go-Ahead Group (GOG) 1,313.00p -1.72%Punch Taverns (PUB) 74.65p -1.71%CPP Group (CPP) 294.90p -1.70%